working version of module.test - woohoo!

Author: JeffGarland

CMakeLists.txt

@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-cmake_minimum_required(VERSION 3.25)
+cmake_minimum_required(VERSION 3.28)
 
 project(
     beman.scope
@@ -89,8 +89,7 @@ if(BEMAN_SCOPE_INSTALL_CONFIG_FILE_PACKAGE)
         EXPORT beman.scope-targets
         DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/beman.scope
         NAMESPACE beman::
-        CXX_MODULES_DIRECTORY
-        cxx-modules
+        CXX_MODULES_DIRECTORY cxx-modules
         COMPONENT beman.scope
     )
 endif()

tests/CMakeLists.txt

@@ -17,15 +17,18 @@ include(Catch)
 
 add_executable(test.module)
 target_sources(test.module PRIVATE module.test.cpp)
-target_compile_features(test.module PRIVATE cxx_std_20)
-target_compile_options(test.module PRIVATE "-fmodules")
+target_link_libraries(test.module PRIVATE beman::scope)
+add_test(NAME test.module COMMAND test.module)
+
+# todo: gc++15 module and catch incompatiblity?
 # target_link_libraries(
 #     test.module
 #     PUBLIC FILE_SET TYPE CXX_MODULES include/beman/scope/beman.scope.cppm
 #     PRIVATE Catch2::Catch2WithMain beman::scope
 # )
 # catch_discover_tests(test.module)
 
+
 foreach(testname ${ALL_TESTNAMES})
     add_executable(test.${testname})
     target_sources(test.${testname} PRIVATE ${testname}.test.cpp)